democrats have the lead in florida, iowa, nevada and north carolina. republicans have a small edge in colorado. >> many voters are wondering why can't they cavity their ballots on line. that could solve a huge number of problems, long polling lines and that election day is not a national holiday. experts say it's a security issue and the risk of hacking is too high. we do plenty of other secure things on line, file taxes pay credit card bills enter your social security number, the list goes on. the voting machines have their own fair share of security issues. critics say it would take just $11 and an eighth grade science education to hack the machines used by american voters. there's no way to track the original vote. we can hope for on line voting in the future, but for now, it is not in the cards. stay with us. importantly to take the time to learn about each candidate's stance on the issues that matter to you. to help you make informed decisions, watch current tv's politically direct lineup. only on current tv. vote smart. our democracy depends on a